2,650 research outputs found
ISCHEMIA Trial: Key Questions and Answers
A healthy lifestyle, myocardial revascularisation and medical therapy constitute the three pillars for the treatment of ischaemic heart disease. Lifestyle and optimal medical therapy should be used in all cases. However, the selection of cases for revascularisation among stable patients remains controversial. The ISCHEMIA trial compared an early invasive strategy with revascularisation plus optimal medical therapy against initial optimal medical therapy alone with revascularisation reserved for cases in which symptom control was insufficient. The study included over 5,000 patients with stable coronary artery disease and moderate to severe myocardial ischaemia. No differences were found in relevant clinical outcomes, including all-cause mortality, cardiovascular death, MI, heart failure and stroke, over a follow-up of 3.2 years. Conversely, angina control was better in patients with severe symptomatic angina. Following the tradition of all trials comparing medical therapy alone with revascularisation, the ISCHEMIA trial results are controversial, but an analysis of the design and results of the trial offers important information to better understand, evaluate and treat the growing number of patients with stable chronic ischaemic heart disease and moderate to severe myocardial ischaemia
A Tractable Line-of-Sight Product Channel Model: Application to Wireless Powered Communications
We here present a general and tractable fading model for line-of-sight (LOS) scenarios, which is based on the product of two independent and non-identically distributed κ- μ shadowed random variables. Simple closed-form expressions for the probability density function and cumulative distribution function are derived, which are as tractable as the corresponding expressions derived from a product of Nakagami-m random variables. This newly proposed model simplifies the challenging characterization of LOS product channels, as well as combinations of LOS channels with non-LOS ones. Results are used to analyze performance measures of interest in the context of wireless powered communications.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
Late-life depression is able to accelerate learning and memory impairment in a mouse model of Alzheimer´s disease
Clinical studies suggest that depression could be considered an important risk factor for the future development of cognitive impairment and Alzheimer's disease (AD). In fact, there is a strong association between late-life depression and AD. The age of AD onset has been shown to be accelerated in patients with mild cognitive impairment (MCI) with a history of depression, and women appear to be particularly more vulnerable to this condition. In addition, individuals with MCI who present depressive
symptoms have an elevated burden of amyloid-beta (Aβ), the main toxic protein associated with Alzheimer's pathology, and a higher risk of developing AD compared to non-depressed MCI patients. Although it has been described that some transgenic models of AD can develop signs similar to depression in advanced stages, the induction of Alzheimer's pathology due to a depressive process has not been studied under experimental conditions to emulate late-life depression as a risk factor for
AD. The objective of this study is to determine, by inducing unpredictable mild chronic stress (CUMS) in tau transgenic P301S mice, whether depression is a cause, rather than a consequence, of AD development. The results of our study indicate that the induction of CUMS in transgenic animals induces phenotypic changes related to a depressive state. Behavioral and histological studies suggest that depression-like induction can worse AD pathology. The findings generated in this project could provide evidence of depression as a risk factor for AD
A Concise Synthesis of a BODIPY-Labeled Tetrasaccharide Related to the Antitumor PI-88
A convergent synthetic route to a tetrasaccharide related to PI-88, which allows the incorporation of a fluorescent BODIPY-label at the reducing-end, has been developed. The strategy, which features the use of 1,2-methyl orthoesters (MeOEs) as glycosyl donors, illustrates the usefulness of suitably-designed BODIPY dyes as glycosyl labels in synthetic strategies towards fluorescently-tagged oligosaccharides.This research was funded by Spanish MINISTERIO DE ECONOMIA Y COMPETITIVIDAD, GOBIERNO DE ESPAÑA (projects MAT2017–83856-C3-1-P and 3-P, PiD2020-1147555GB-C33), the MINISTERIO DE CIENCIA INNOVACION Y UNIVERSIDADES (project RTI2018-094862-B-I00), and the GOBIERNO VASCO (project IT912-16)
Proteomic characterization of human coronary thrombus in patients with ST-segment elevation acute myocardial infarction
Acute myocardial infarction with ST-segment elevation (STEMI) initiates with intraluminal thrombosis and results in total occlusion of the coronary artery. To date, characterization of the coronary thrombus proteome in STEMI patients has not been yet accomplished. Therefore, we aimed to perform an in-depth proteomic characterization of the human coronary thrombus by means of three different approaches: 2-DE followed by mass spectrometry (MALDI MS/MS), 1-DE combined either with liquid chromatography coupled to mass spectrometry in a MALDI TOF/TOF (LC-MALDI-MS/MS), or in a LTQ-Orbitrap (LC-ESI-MS/MS). This approach allowed us to identify a total of 708 proteins in the thrombus. Expression in coronary thrombi (n=20) of 14 proteins was verified, and the expression of fibrin and 6 cell markers (platelets, monocytes, neutrophils, eosinophils, T-cells and B-cells) quantified by selected reaction monitoring (SRM). A positive correlation of 5 proteins (fermitin homolog 3, thrombospondin-1, myosin-9, beta parvin and ras-related protein Rap-1b) with CD41 was found, pointing out the potential activation of a focal adhesion pathway within thrombus platelets. DIDO1 protein was found to correlate negatively with thrombus fibrin, and was found up-regulated in the plasma of these STEMI patients, which may constitute a starting point for further analyses in the search for biomarkers of thrombosis. BIOLOGICAL SIGNIFICANCE: The proteomic characterization of the human coronary thrombus may contribute to a better understanding of the mechanisms involved in acute coronary syndrome, and thus pave the road for the identification of new therapeutic targets that may help addressing this and other thrombotic diseases. A novel methodology to characterize thrombus composition and expression of a sub-group of proteins is hereby described, which allowed linking protein expression with cellular and ECM matrix composition of the thrombus. Five proteins (fermitin homolog 3, thrombospondin-1, myosin-9, beta parvin and ras-related protein Rap-1b) co-express within the human coronary thrombus with CD41, pointing out the potential activation of a focal adhesion pathway within thrombus platelets during thrombus formation. Besides, the protein death-inducer obliterator 1, found to be expressed within the human coronary thrombus, has been proved to increase in the plasma of STEMI patients, which constitutes an important starting point for further analyses in the search for biomarkers of thrombosis.This work was supported by grants from the Instituto de Salud Carlos III (FIS PI070537, PI11/02239), Fondos Feder, Redes temáticas de Investigación Cooperativa en Salud (RD12/0042/ 0071, RD06/0014/1015), and Fundación para la Investigación Sanitaria de Castilla-La Mancha (FISCAM PI2008-08, PI2008-28, PI2008-52). These results are lined up with the Spanish initiative on the Human Proteome Project (SpHPP). The CNIC is supported by the Spanish Ministerio de Economia y Competitividad and the Fundacion Pro-CNIC. We would like to thank Dr. Gloria Alvarez-Llamas for her kind suggestions for the manuscript; Gemma Barroso from Proteomic Unit, Hospital Nacional de Paraplejicos, for her help and dedication to this work, as well as Veronica Moral and Ana Gallardo from the same Unit, and TamaraSastre andCarmenBermudez for their technical support.S
Immune gene expression in gilthead seabream after nervous necrosis virus (NNV) challenge
Viral nervous necrosis (VNN) is a disease that affects farmed fish worldwide. Its etiologic agent is the nervous necrosis virus (NNV), genus Betanodavirus, family Nodaviridae. NNV are small and non-enveloped viruses with a genome consisting of two molecules of positive-sense single-stranded RNA, RNA1 and RNA2, which encode the RNA-dependent RNA polymerase and the capsid protein, respectively. The betanodaviruses have been classified into four species: Striped jack nervous necrosis virus (SJNNV), Tiger puffer nervous necrosis virus (TPNNV), Red-spotted grouper nervous necrosis virus (RGNNV), and Barfin flounder nervous necrosis virus (BFNNV). In Southern Europe, natural reassortants between RGNNV and SJNNV have been isolated from Senegalese sole (Solea senegalensis), gilthead seabream (Sparus aurata) and European seabass (Dicentrarchus labrax) associated to VNN outbreaks. Immune response against betanodavirus infections has been poorly studied in gilthead seabream. In this study, fish were challenged by intramuscular (im) injection or by immersion, using a reassortant strain containing RGNNV-type RNA1 and SJNNV-type RNA2 segments. Head kidney and brain samples were collected at 24, 48 and 72 h post-challenge (pc) for the injection experiment, while in the bath challenge sampling was performed at 48 and 72 h pc. The immunogen expression analysis was carried out using the platform OpenArray®. In the im-injected fish, 21 differentially expressed genes (DEGs) were identified in head kidney samples at 24 h pc, whereas a lower immune response was detected at 48 and 72 h pc (11 and 9 DEGs, respectively). In brain samples, a delayed response was observed, with 32 DEGs recorded at 72 h pc. Regarding the bath-challenged fish, fewer immunogenes were differentially expressed although all of them were up-regulated. This research was funded by the Ministerio de Ciencia, Innovación y Universidades (MCIUI) and FEDER under Grant RTI2018-094687-B.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec
Evidence Against the Sciama Model of Radiative Decay of Massive Neutrinos
We report on spectral observations of the night sky in the band around 900
angstroms where the emission line in the Sciama model of radiatively decaying
massive neutrinos would be present. The data were obtained with a high
resolution, high sensitivity spectrometer flown on the Spanish MINISAT
satellite. The observed emission is far less intense than that expected in the
Sciama model.Comment: 9 pages, accepted to Ap
Kinescan/IBV V11: Biomechanical assessment in real time
[EN] Experts in biomechanical assessment are
very interested in increasing precision of the
measurements, reducing the needed time for
evaluating patients and giving more flexibility
to their labs. Therefore, we developed a new
version of our system for kinematic analysis of
human movement: Kinescan/IBV V11.
Kinescan/IBV V11 is based in digital video
technology and is able to make a distributed
pre-processing. So it can analyse automatically
movements in real time and use an unlimited
number of cameras.
The labs of functional assessment can reduce
their costs, reduce their needed time for the
assessment and increase their precision and
reliability.[ES] El interés de los expertos en
valoración biomecánica por
incrementar la precisión de las
medidas, reducir los tiempos
de valoración y dotar de mayor
flexibilidad a sus laboratorios es cada
vez más creciente. Por esos motivos,
hemos desarrollado una nueva
versión de nuestro sistema de análisis
cinemático de los movimientos
humanos: Kinescan/IBV V11.
Kinescan V11 es un sistema basado
en tecnología vídeo digital con preprocesado
distribuido que permite,
entre otras características, analizar
los movimientos en tiempo real y de
forma automática y utilizar cuantas
cámaras sean necesarias.
Gracias a esta tecnología, los
laboratorios de valoración funcional
del IBV podrán reducir sus costes de
operación, reducir los tiempos de
valoración e incrementar su precisión
y fiabilidad.Montero Vilela, J.; Parra Gonzalez, F.; Parrilla Bernabé, E.; Medina Ripoll, E.; Lopez Pascual, J.; Moreno Cano, R.; Castelli., A.... (2013). Kinescan/IBV v11: Valoración biomecánica en tiempo real. Revista de biomecánica. 59:35-38. http://hdl.handle.net/10251/38676S35385
Desarrollo multidisciplinario en investigación y docencia del centro universitario UAEM Valle de México
DESARROLLO MULTIDISCIPLINARIO EN INVESTIGACIÓN Y DOCENCIA DEL CENTRO UNIVERSITARIO UAEM VALLE DE MÉXICOLa Universidad Autónoma del Estado de México ha evolucionado a través de sus 188 años de historia, dedicada a la educación, la investigación, la cultura y el deporte, como sus grandes ejes rectores, formadora de hombres y mujeres con un alto sentido humanista y ético, contribuyendo a lograr nuevas y mejores formas de existencia y convivencia social. Durante el proceso de desconcentración de la UAEM, se crearon las Unidades Académicas y Centros Universitarios para brindar el servicio de educación a más jóvenes en todo el Estado de México, este Centro Universitario fue uno de los primeros y a sus veinte años de existencia se está consolidando como uno de los mejores. Es en los últimos años que se ha venido impulsando la investigación al contar con cuerpos académicos, en formación y en consolidación, con infraestructura de primera tanto en equipo como en laboratorios especializados, con profesores de tiempo completo que participan en congresos, seminarios y presentan publicaciones en revistas indexadas. Por ello para celebrar esos veinte años de existencia de esta honorable institución, se planeó la compilación de esta obra que es parte del quehacer multidisciplinario en investigación y docencia como parte del Plan de Desarrollo 2013-2017, de esta administración. Esta obra reúne investigaciones tanto de profesores como de alumnos desde las diferentes ramas del saber en las que se inscriben sus siete licenciaturas, Actuaría, Administración, Contaduría, Derecho, Economía, Relaciones Económicas Internacionales e Informática Administrativa, tanto presencial como a distancia, así como sus tres ingenierías, Industrial, en Computación y Sistemas y Comunicaciones, así como gracias a la vinculación y colaboración académico – científica que se tiene con otras instituciones de educación superior a nivel nacional, como el Instituto Tecnológico de Orizaba, la Universidad Autónoma de San Luis Potosí, la Universidad Nacional Autónoma de México, la Universidad Autónoma Metropolitana, Universidad Politécnica de Victoria, el Instituto Politécnico Nacional entre otras. En el capítulo 1 se abordan seis temáticas diferentes de vanguardia en el área de las Ingenierías, en los capítulos 2 y 3 se incluyen temas de interés y gran relevancia en materia de ciencias sociales, política y economía. Se hace extensivo un reconocimiento para todos los que participaron tanto en la revisión de los trabajos, como en la compilación del producto final de este Libro intitulado “Desarrollo Multidisciplinario en Investigación y Docencia del Centro Universitario UAEM Valle de México”
Knowledge, attitudes and preventive practices of primary health care professionals towards alcohol use: A national, cross-sectional study.
Introduction
Primary care (PC) professionals' knowledge about alcohol use has been identified as one of the barriers PC providers face in their clinic. Both PC professionals’ level of training and attitude are crucial in the clinical practice regarding alcohol use.
Objective
To evaluate the knowledge, attitude, and preventive practices of Spanish PC physicians and nurses towards alcohol use.
Design
An observational, descriptive, cross-sectional, multi-center study.
Methodology
Location: PC centers of the Spanish National Health System (NHS). Participants: PC physicians and nurses selected randomly from health care centers, and by sending an e-mail to semFYC and SEMERGEN members. Healthcare providers completed an online survey on knowledge, attitude, and follow-up recommendations for reducing alcohol intake. A descriptive, bivariate, and multivariate statistical analysis was conducted (p<0.05).
Results
Participants: 1,760 healthcare providers completed the survey (75.6% [95% CI 73.5–77.6] family physicians; 11.4% [95% CI 9.9–12.9] medical residents; and 12.5% [95% CI 10.9–14.1] nurses), with a mean age of 44.7 (SD 11.24, range: 26–64, 95% CI: 47.2–48.2). Knowledge was higher in family physicians (p<0.001), older professionals (Spearman's r = 0.11, p<0.001), and resident trainers (p<0.001). The PC professional most likely to provide advice for reducing alcohol use was: a nurse (p <0.001), female (p = 0.010), between 46 and 55 years old (p <0.001).
Conclusions
PC providers’ knowledge and preventive practices regarding alcohol use are scarce, hence specific training strategies to increase their knowledge and improve their attitude and skills with regard to this health problem should be considered a healthcare policy priority.post-print507 K
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